103 lines
4.4 KiB
QML
103 lines
4.4 KiB
QML
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Quick Extras module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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import QtQuick 2.3
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import QtQuick.Extras 1.4
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import QtQuick.Extras.Private 1.0
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import QtQuick.Extras.Private.CppUtils 1.0
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Loader {
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id: iconLoader
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active: iconSource != ""
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property PieMenu control: null
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property QtObject styleData: null
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readonly property string iconSource: styleData && styleData.index < control.__protectedScope.visibleItems.length
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? control.__protectedScope.visibleItems[styleData.index].iconSource
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: ""
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sourceComponent: Image {
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id: iconImage
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source: iconSource
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x: pos.x
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y: pos.y
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scale: scaleFactor
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readonly property point pos: MathUtils.centerAlongCircle(
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iconLoader.parent.width / 2, iconLoader.parent.height / 2, width, height,
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MathUtils.degToRadOffset(sectionCenterAngle(styleData.index)), control.__style.__iconOffset)
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/*
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The icons should scale with the menu at some point, so that they
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stay within the bounds of each section. We down-scale the image by
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whichever of the following amounts are larger:
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a) The amount by which the largest dimension's diagonal size exceeds
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the "selectable" radius. The selectable radius is the distance in pixels
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between lines A and B in the incredibly visually appealing image below:
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__________
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- B -
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/ \
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/ ____ \
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| / A \ |
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--------| |--------
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b) The amount by which the diagonal exceeds the circumference of
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one section.
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*/
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readonly property real scaleFactor: {
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var largestDimension = Math.max(iconImage.sourceSize.width, iconImage.sourceSize.height) * Math.sqrt(2);
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// TODO: add padding
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var radiusDifference = largestDimension - control.__style.__selectableRadius;
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var circumferenceDifference = largestDimension - Math.abs(control.__protectedScope.circumferenceOfSection);
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if (circumferenceDifference > 0 || radiusDifference > 0) {
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// We need to down-scale.
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if (radiusDifference > circumferenceDifference) {
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return control.__style.__selectableRadius / largestDimension;
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} else {
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return Math.abs(control.__protectedScope.circumferenceOfSection) / largestDimension;
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}
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}
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return 1;
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}
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}
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}
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